Toyota Sienna Service Manual: Terminals of ECU

Toyota Sienna Service Manual / Cruise control / Dynamic laser cruise control system / Terminals of ECU

1. CHECK DISTANCE CONTROL ECU

CHECK DISTANCE CONTROL ECU

Reference: waveform 1

HINT:

Terminal: LRDD - SGND
Gauge set: 2 V/DIV., 10 ms./DIV.
Condition: ignition switch in the ON position

CHECK DISTANCE CONTROL ECU

Reference: waveform 2

HINT:

Terminal: LRRD - SGND
Gauge set: 2 V/DIV., 5 ms./DIV.
Condition: ignition switch in the ON position

2. CHECK ECM

CHECK ECM

If the value is not within the specified range, the ECM may have a malfunction.

3. CHECK LASER SENSOR

CHECK LASER SENSOR

Reference: waveform 1

HINT:

Terminal: LRDD - SGND
Gauge set: 2 V/DIV., 10 ms./DIV.
Condition: ignition switch in the ON position

CHECK LASER SENSOR

Reference: waveform 2

HINT:

Terminal: LRRD - SGND
Gauge set: 2 V/DIV., 5 ms./DIV.
Condition: ignition switch in the ON position

4. BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

Problem symptoms table

HINT: Use the table below to help determine the cause of the problem symptom. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Re ...

Diagnosis system

1. DIAGNOSIS FUNCTION The diagnosis function makes the light and the multi-information display come on, and the CRUISE main indicator light blink as shown in the illustration. When ...

Other materials:

Rear Airbag Sensor LH Circuit Malfunction
DTC B1155/39 Rear Airbag Sensor LH Circuit Malfunction DESCRIPTION The rear airbag sensor LH circuit consists of the center airbag sensor assembly and rear airbag sensor LH. If the center airbag sensor assembly receives signals from the rear airbag sensor LH, it judges whether or not the ...

Removal
1. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY WITH PASSENGER AIRBAG ASSEMBLY HINT: Refer to the instructions for removal of the instrument panel sub-assembly w/ passenger airbag assembly (See page IP-5). 2. REMOVE HEATER TO FOOT DUCT NO.1 (a) Remove the clip and the heater to foot duct No. 1. 3 ...

Stereo Component Amplifier Power Source Circuit
DESCRIPTION This circuit provides power to the stereo component amplifier. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connector. Measure the resistance according to the value(s) in the table below. S ...